Feature: Tungsten steel material, high hardness, not easy to be slightly deformed, to meet the requirements of high precision measuring instruments. High precision equipment is manufactured through strict process and the edges are flat. Suitable for use in dial gauges. The thread is M2.5. (Please pay attention to purchase) This flat disc-type contact point is ideal for use with drop indicators in measuring soft materials like foam and plastics. Specification: Material: Tungsten steel Thread: M2.5 Model(Optional) Diameter Thickness Y5 8mm 5mm Y6 10mm 6mm Y7 10mm 5mm Y8 10mm 10mm Y9 12mm 5mm Y10 15mm 5mm Y11 20mm 5mm Package list: 1 * Dial Gauge Flat Contact Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.